4: Add solution for "quiz1".

Created by  Aaw9nJhsNmfzFih9mKyNw9mV8CgERXJkRa1kK1Kx3LQH  on August 6, 2021
UMOONQU2ZNAE6JECAUXSRQIA5EVGR7AZTAODNJOVTWEKQVWMHK5AC
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